CN107885403A - Touch-screen and touch-screen system based on surface electromagnetic wave - Google Patents
Touch-screen and touch-screen system based on surface electromagnetic wave Download PDFInfo
- Publication number
- CN107885403A CN107885403A CN201710786274.1A CN201710786274A CN107885403A CN 107885403 A CN107885403 A CN 107885403A CN 201710786274 A CN201710786274 A CN 201710786274A CN 107885403 A CN107885403 A CN 107885403A
- Authority
- CN
- China
- Prior art keywords
- electromagnetic wave
- surface electromagnetic
- touch
- dielectric substrate
- screen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000758 substrate Substances 0.000 claims abstract description 108
- 230000000644 propagated effect Effects 0.000 claims abstract description 23
- 230000000737 periodic effect Effects 0.000 claims abstract description 8
- 239000004020 conductor Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 22
- 239000011241 protective layer Substances 0.000 claims description 12
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229920000954 Polyglycolide Polymers 0.000 claims description 3
- 239000002322 conducting polymer Substances 0.000 claims description 3
- 229920001940 conductive polymer Polymers 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 229910021389 graphene Inorganic materials 0.000 claims description 3
- 239000004633 polyglycolic acid Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 7
- 230000008859 change Effects 0.000 description 16
- 230000005684 electric field Effects 0.000 description 12
- 238000010897 surface acoustic wave method Methods 0.000 description 11
- 238000001514 detection method Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 6
- 230000010358 mechanical oscillation Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006854 communication Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000686 essence Substances 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000001902 propagating effect Effects 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 101100536251 Mus musculus Tmem120a gene Proteins 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 241000276425 Xiphophorus maculatus Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/046—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by electromagnetic means
Abstract
The invention provides a kind of touch-screen and touch-screen system based on surface electromagnetic wave, the touch-screen of the invention based on surface electromagnetic wave includes dielectric substrate；Located at dielectric substrate side it is multiple, with form to outside generation electromagnetic wave in dielectric substrate couple and form the surface electromagnetic wave input block of surface electromagnetic wave；The surface electromagnetic wave of specific frequency is set to form the periodic conductor pattern propagated along dielectric substrate auto-collimation located at the adapting to the structure of dielectric substrate of dielectric substrate；And relative to surface electromagnetic wave input block, the opposite side located at dielectric substrate, and the surface electromagnetic wave output unit being coupled to receive correspondingly to surface electromagnetic wave is formed between surface electromagnetic wave input block.The touch-screen based on surface electromagnetic wave of the present invention can be simplified the making of touch-screen system and calibration process, by increasing capacitance it is possible to increase the scope of application of touch-screen, and make the resolution ratio of touch-screen adjustable, and there is good practicality.
Description
Technical field
The present invention relates to touch screen technology field, more particularly to a kind of touch-screen based on surface electromagnetic wave, the present invention is also
It is related to the touch-screen system that a kind of application has the touch-screen based on surface electromagnetic wave.
Background technology
With the development and progress of science and technology, touch-screen turns into a kind of common and indispensable device, and it is widely used in
In the electronics such as mobile phone, TV, computer, printer and control panel.Currently used touch-screen mainly have condenser type, resistance-type,
Surface acoustic wave and infrared touch panel.Wherein condenser type and resistive touch screen are by detecting the direct telecommunications at touch location
Number change determine specific touch location, it can have a good accuracy, and projecting type capacitor screen and surface capacitance
The release of screen, then realize the function of multiple spot while detection.
Touch-screen based on surface acoustic wave detection is that specific touch is confirmed by detecting the change of the intensity of acoustic wave of touch place
Touch position.Surface acoustic wave be it is a kind of along elastomeric material surfaces propagate and amplitude with the ripple for going deep into case depth exponential damping, in spy
It can accomplish along straightline propagation on fixed substrate, wherein specific substrate refers to the substrate with piezoelectric properties, because the work of sound wave
With the mechanical oscillation that mechanism is material, mechanical oscillation of the ultrasonic wave when surface is propagated are converted into electricity by the acting as of piezoelectric substrate
Signal, in other words, the propagation of surface acoustic wave is a kind of constantly vibrocompression and the process of decompression.To the mechanical oscillation
The contact of the influential object of journey causes the change for propagating end electric signal, is mapped in reference axis so as to realize to corresponding
Contact position detection.
Change based on the touch-screen of infrared detection method by detecting the infrared signal of touch place confirms touch location,
It can be identified in the touch of the upper any object that can be scattered or absorb infrared signal of application.
Although existing condenser type, resistance-type, surface acoustic wave and infrared type touch-screen can realize touch function, and obtain
Using, but its still there is following deficiency：
1st, existing condenser type and resistive touch screen are multi-layer touch screen, and calibration process is complicated, and light transmission is poor, are touched
It is low and touch screen surface is fragile to touch screen resolution ratio；
2nd, existing surface acoustic wave touch screen, which can not be made, is fully sealed device, meanwhile, surface acoustic wave touch screen
Irregular adjustment is needed, and its product size is also limited；
3rd, existing infrared type touch-screen is excessively sensitive, and touch-screen resolution ratio is not high, can limit its application.
The content of the invention
In view of this, the present invention is directed to propose a kind of touch-screen based on surface electromagnetic wave, a kind of applicable that can obtain
The touch-screen that scope is wide, resolution ratio is adjustable and technique is relatively simple.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of touch-screen based on surface electromagnetic wave, it includes：
Dielectric substrate；
Multiple surface electromagnetic wave input blocks, located at the dielectric substrate side, to form the electromagnetic wave to outside generation
In the coupling of the dielectric substrate, and form surface electromagnetic wave；
Periodic conductor pattern, located at the dielectric substrate, the characteristic size of each conductive pattern is sub- ripple
Long size, and the conductive pattern is configured to adapt to the structure of the dielectric substrate, and input the surface electromagnetic wave
The surface electromagnetic wave of the specific frequency of unit input is formed to be propagated along the auto-collimation of the dielectric substrate；
Multiple surface electromagnetic wave output units, relative to the surface electromagnetic wave input block, located at the dielectric substrate
Relative opposite side and the one-to-one corresponding that is formed between the surface electromagnetic wave input block, the surface electromagnetic wave is defeated
Go out unit and form being coupled to receive and being carried out outwards to the surface electromagnetic wave of the reception to the surface electromagnetic wave of auto-collimation propagation
The conductance in portion goes out.
Further, in addition to cover in the dielectric substrate with the protective layer on the conductive pattern side；Institute
State protective layer to be made up of transparent or nontransparent material, and the thickness of the protective layer is 0~1cm.
Further, the relative dielectric constant of the dielectric substrate is 1~100.
Further, the dielectric substrate is made up of transparent or nontransparent material.
Further, the material of the conductive pattern includes metal, graphene, Polyglycolic acid fibre and conducting polymer
Thing.
Further, the figure of the conductive pattern includes concave polygon, convex polygon, circle, ellipse and graftal
Shape.
Further, the fundamental figure of the fractal graph includes square, diamond, cross, H-shaped and I-shaped.
Further, each conductive pattern is arranged on a rectangular area for being formed at the dielectric substrate
It is interior, and the length of side of each rectangular area is 50nm~10cm, each rectangular area mutually separates.
Further, include can be to surface electricity for the surface electromagnetic wave input block and the surface electromagnetic wave output unit
The super surface of gradient that magnetic wave is coupled, microstrip line.
Further, the opposite sides in each direction in the mutually orthogonal both direction of the dielectric substrate is set respectively
It is equipped with the surface electromagnetic wave input block of corresponding arrangement and the surface electromagnetic wave output unit.
Relative to prior art, the present invention has the advantage that：
The touch-screen based on surface electromagnetic wave of the present invention, propagated by using the auto-collimation of the surface electromagnetic wave of input,
And absorption and scattering of the touching object to surface electromagnetic wave, and caused by surface electromagnetic wave signal decay, so as to by sending out
Coordinate corresponding to the propagation path of the surface electromagnetic wave of raw decay obtains the position coordinates of touch point, to provide a kind of new base
In the touch-screen of surface electromagnetic wave.
Meanwhile the touch-screen of the invention based on surface electromagnetic wave, it is based on realizing electromagnetic surface wave auto-collimation people
The super surface texture of work, i.e., by dielectric substrate and periodicity conductive pattern is formed thereon agent structure, single layer structure can be achieved
Characteristic, so as to effectively simplify making and the calibration process of touch-screen.
And by adjusting the structural parameters of dielectric substrate and conductive pattern, the present invention can change the performance of touch-screen, not only
The regulation of touch-screen resolution ratio can be realized, the working frequency of touch-screen can be also adjusted, can increase it with this is applicable model
Enclose.
In addition, being different from surface acoustic wave in the surface electromagnetic wave principle of the present invention, surface acoustic wave is a kind of mechanical oscillation, and
Surface electromagnetic wave be it is a kind of be present between two kinds of material interfaces with differing dielectric constant, and along referring to perpendicular to interface direction
Number decay, the electromagnetic wave propagated in the form of quasi wave, the essence of surface electromagnetic wave is still electromagnetic wave, i.e., by perpendicular to propagation
Ripple caused by the electric field of same phase in direction and the interaction in magnetic field.Above-mentioned principle determines that surface acoustic wave depends on piezoresistive material
Material, and surface electromagnetic wave only relies upon the relative dielectric constant of material, therefore the application of electromagnetic surface wave is wider, non-piezoelectric
Material such as liquid etc. can act also as the substrate of surface electromagnetic wave appearance, and this, which causes surface electromagnetic wave may apply to, much has liquid
In the position detection of body environment.
In addition, on detecting material, surface electromagnetic wave of the invention also makes a big difference with surface acoustic wave, surface electromagnetism
Ripple is sensitive to the dielectric constant of material, so as to be accomplished by the relative dielectric constant for adjusting surface electromagnetic wave decay side medium
Detection to the material with differing dielectric constant, with the alternative and accuracy of increase detection.And surface electromagnetic wave
Phase velocity is significantly larger than ultrasonic surface, and surface electromagnetic wave also has without scattering at the operating frequencies, and this can just reduce table
Energy loss during the Electromagnetic Wave Propagation of face, so as to may be such that surface electromagnetic wave is more beneficial for the position sensing of large area.
To sum up, inventive touch screen uses surface electromagnetic wave mode, can simplify touch-screen making and calibration process, can have
There is the larger scope of application, the loss in communication process can be reduced, and can also effectively keep away using the characteristic of surface electromagnetic wave
Exempt from the interference of sound wave and electromagnetic wave in environment, and have good practicality.
Another object of the present invention is to propose a kind of touch-screen system, it includes：
Touch-screen based on surface electromagnetic wave as described above；
Electromagnetic wave generation unit, it is connected with the surface electromagnetic wave input block, to generate the electromagnetic wave of specific frequency simultaneously
It is transmitted in the surface electromagnetic wave input block；
Recognition unit, it is connected with the surface electromagnetic wave output unit, the recognition unit is used for the surface electromagnetism
The intensity for the surface electromagnetic wave that ripple output unit is received is detected, and surface electromagnetic wave intensity is reduced more than nominal threshold value
The surface electromagnetic wave output unit corresponding to coordinate of the coordinate as touch point.
Further, the coordinate of the touch point is along the one-dimensional coordinate on a direction of the dielectric substrate, or institute
The coordinate for stating touch point is along the two-dimensional coordinate on two orthogonal directions of the dielectric substrate.
The present invention based on the touch-screen system of surface electromagnetic wave by using the touch based on surface electromagnetic wave as above
Screen can be simplified the making of touch-screen system and calibration process, can also increase the scope of application of touch-screen, and to touch
It is adjustable to touch the resolution ratio of screen, there is good practicality.
Brief description of the drawings
The accompanying drawing for forming the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the structural representation of the touch-screen based on surface electromagnetic wave described in the embodiment of the present invention；
Fig. 2 is a kind of example arrangement of the microstrip line described in the embodiment of the present invention；
Fig. 3 is a kind of example arrangement on the super surface of gradient described in the embodiment of the present invention；
Fig. 4 is a kind of example arrangement of the conductive pattern described in the embodiment of the present invention；
Fig. 5 is the side view of the dielectric substrate and conductive pattern described in the embodiment of the present invention；
Fig. 6 is dielectric substrate and conductive pattern geometric parameter is Dx=Dy=5mm, a=2mm, b=c=3.8mm, w1=
W2=w3=0.4mm, h=1mm, t=35 μm, and dielectric substrate relative dielectric constant be 16 when can band isofrequency map；
Fig. 7 is the structural representation of the touch-screen sample described in the embodiment of the present invention；
Fig. 8 is the amplitude distribution of electric field Ex components when x directions incoming frequency is 6.34GHz frequencies along Fig. 7, and along y
The amplitude distribution of electric field Ex components when direction incoming frequency is 11.12GHz；
Fig. 9 is the structural representation of the dielectric cylinder described in the embodiment of the present invention；
Figure 10 is the schematic diagram that the dielectric cylinder described in the embodiment of the present invention is positioned on propagation path；
Figure 11 is positioned over the schematic diagram of propagation path both sides for the dielectric cylinder described in the embodiment of the present invention；
Figure 12 is the dielectric cylinder difference of difference relative dielectric constant when incoming frequency is 6.34GHz in the x-direction along Fig. 7
The ratio of output signal and input signal (S21) when being placed on position as shown in Figure 10 and Figure 11, and input frequency in the y-direction
The dielectric cylinder of difference relative dielectric constant is individually positioned in defeated during position as shown in Figure 10 and Figure 11 when rate is 11.12GHz
Go out signal and the ratio (S21) of input signal；
Figure 13 is dielectric substrate and conductive pattern geometric parameter is Dx=Dy=5mm, a=1.4mm, b=c=3.8mm, w1
=w2=w3=0.4mm, h=1mm, t=35 μm, and bottom plate relative dielectric constant be 16 when can band isofrequency map；
Figure 14 is electric field Ex components when incoming frequency is 6.95GHz frequencies in the x-direction in the sample under Figure 13 geometric parameters
Amplitude distribution, and when incoming frequency is 11.28GHz in the y-direction electric field Ex components amplitude distribution；
Figure 15 is in the sample under Figure 13 geometric parameters, and different relative dielectrics are normal when incoming frequency is 6.95GHz in the x-direction
The ratio of output signal and input signal (S21) when several dielectric cylinders is individually positioned in position as shown in Figure 10 and Figure 11,
And in the y-direction when incoming frequency is 11.25GHz the dielectric cylinder of difference relative dielectric constant is individually positioned in such as Figure 10 and figure
The ratio (S21) of output signal and input signal during position shown in 11；
Figure 16 is dielectric substrate and conductive pattern geometric parameter is Dx=Dy=5mm, a=2mm, b=c=3.8mm, w1=
W2=w3=0.4mm, h=1mm, t=35 μm, and dielectric substrate relative dielectric constant be 3 when can band isofrequency map；
Figure 17 is dielectric substrate and conductive pattern geometric parameter is Dx=Dy=5mm, a=2mm, b=c=3.8mm, w1=
W2=w3=0.4mm, h=1.2mm, t=35 μm, and dielectric substrate relative dielectric constant be 3 when can band isofrequency map；
Figure 18 is dielectric substrate and conductive pattern geometric parameter is Dx=Dy=1mm, a=0.4mm, b=c=0.76mm,
W1=w2=w3=0.08mm, h=0.2mm, t=35 μm, the isofrequency map of energy band when dielectric substrate relative dielectric constant is 3；
Figure 19 is in the sample under Figure 18 geometric parameters, electric field Ex points when incoming frequency is 63.35GHz frequencies in the x-direction
The amplitude distribution of amount, and when incoming frequency is 120.5GHz in the y-direction electric field Ex components amplitude distribution；
Description of reference numerals：
1- dielectric substrates, 2- conductive patterns, 3-x to input block, 4-y to input block, 5-x to output unit, 6-y to
Output unit, 7- protective layers, 8- dielectric cylinders, 9- metals, 10- sheet metals, 11- sub-wavelength structures.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Embodiment one
The present embodiment is related to a kind of touch-screen based on surface electromagnetic wave, and touch-screen that should be based on surface electromagnetic wave is (referred to as
For touch-screen) dielectric substrate is generally comprised, the periodic conductor pattern of dielectric substrate is arranged on, and be arranged at dielectric
Multiple surface electromagnetic wave input blocks of substrate side, and it is located at the another of dielectric substrate relative to the surface electromagnetic wave input block
Side, and with the one-to-one surface electromagnetic wave output unit of surface electromagnetic wave input block.
Wherein, dielectric substrate constitutes the arrying main body of touch-screen, and surface electromagnetic wave input block is used to generate outside
Electromagnetic wave be coupled in the surface of dielectric substrate, and then form surface electromagnetic wave.The dielectric substrate can be preferably to use to have
The platy structure of dielectric property.The periodicity namely conductive pattern of conductive pattern have repeatability in one or two dimension,
The setting of the periodic conductor pattern of the present embodiment can adapt to the structure of dielectric substrate, and cause surface electromagnetic wave input block
Auto-collimation of the surface electromagnetic wave formation along dielectric substrate coupled under the specific frequency of input is propagated.Meanwhile the present embodiment
The characteristic size of each conductive pattern be also sub-wavelength dimensions, namely the characteristic size of single conductive pattern is less than surface electromagnetism
The wavelength of ripple.
Specifically, the structure of dielectric substrate includes the relative dielectric constant of dielectric substrate and the size of dielectric substrate etc.
Parameter, and term " adapting to " then represents that conductive pattern coordinates with the dielectric substrate under Different structural parameters, and auto-collimation can be achieved
The frequency of the surface electromagnetic wave of propagation is also different, and dielectric substrate and the conductive pattern of specific structure parameter correspond to specific frequency
Rate can auto-collimation propagate surface electromagnetic wave.Certainly, except the structure of dielectric substrate surfaces that are different, and propagating auto-collimation
The frequency of electromagnetic wave is different, and being somebody's turn to do " adapting to " is also included when structure (the shape and/or size) change of conductive pattern, auto-collimation
The frequency of the surface electromagnetic wave of propagation can also change.Conductive pattern or dielectric substrate structure change cause the surface that auto-collimation is propagated
The situation of wave frequency change, will be introduced in greater detail below.
Corresponding with the surface electromagnetic wave input block of coupling input surface electromagnetic wave, surface electromagnetic wave output unit is used
In being coupled to receive for the surface electromagnetic wave propagated auto-collimation, and surface electromagnetic wave output unit can also be by the surface electromagnetism of reception
Ripple is converted into electric signal and realizes that the conductance to outside goes out, and the surface electromagnetic wave received can be realized by outside identification facility with this
The detection of intensity.In addition, as a preferred embodiment, surface electromagnetic wave input block and correspondingly positioned at two opposite sides in the present embodiment
Surface electromagnetic wave output unit, be arranged to be provided with the mutually orthogonal both direction of dielectric substrate.
Based on overall structure as above, a kind of example arrangement of the touch-screen of the present embodiment as shown in fig. 1, dielectric base
Bottom 1 is located at bottom, and periodic conductor pattern 2 is arranged on the side end face of dielectric substrate 1 one, and in being repeated in two dimensions, and position
In the side of dielectric substrate 1 surface electromagnetic wave input block specifically by being separately positioned on dielectric substrate 1 with y directions in the x-direction
X at two adjacent side edges is formed to input block 3 and y to input block 4, corresponding surface electromagnetic wave output unit then by
X at two other lateral edges of dielectric substrate 1 is formed to output unit 5 and y to output unit 6.X directions and y directions
On input block and output unit be to be arranged side by side with multiple, and shape between the input block and output unit in all directions
Into one-to-one relation.
Be in the present embodiment conductive pattern 2 to being arranged in dielectric substrate 1 and each surface electromagnetic wave input block and
Surface electromagnetic wave output unit is protected, and to avoid its destruction that has an accident, conductive pattern 2 is disposed with dielectric substrate 1
A side end face on also settable protective layer 7, protective layer 7 directly covered in dielectric substrate 1.Protective layer in the present embodiment
7 can use transparent or nontransparent material on material, as it can be used such as nano-glass, high-molecular polythene, nano ceramics
Deng high molecule nano material, or quartz, the material such as polypropylene film, tempering film.In addition, its thickness when setting of protective layer 7
Degree can be between 0~1cm, such as can be 0.5mm, and thickness is 0 and shows to may be selected not in dielectric substrate 1 in the present embodiment
Protective layer 7 is set.
The present embodiment dielectric substrate 1 is when setting, only to the relative dielectric constant scope for the material that dielectric substrate 1 is made
Limited, it should be between 1~100, and dielectric substrate 1 is transparent or nontransparent using such as quartz, silicon chip, F4B plates, TP plates etc.
Material is made, and can so greatly increase the species of the material selection of dielectric substrate 1.And for conductive pattern 2, in the present embodiment
The material that conductive pattern 2 is made includes but is not limited to metal, graphene, Polyglycolic acid fibre and conducting polymer, meanwhile, system
Into conductive pattern 2 figure also include but is not limited to concave polygon, convex polygon, circle and ellipse and fractal graph, its
The fundamental figure of middle fractal graph includes but is not limited to square, diamond, cross, H-shaped and I-shaped etc..
In addition, be directed to conductive pattern 2, in the present embodiment at it when being set in dielectric substrate 1, for being easy to what is set
Consider, in the rectangular area that also each conductive pattern 2 is arranged on the surface of dielectric substrate 1, the side of the rectangular area
Grow between 50nm~10cm, the rectangular area residing for multiple conductive patterns 2 mutually separates, and is spread along the surface of dielectric substrate 1
Exhibition, being repeated cyclically on the surface of dielectric substrate 1 of conductive pattern 2 can be realized with this.Certainly, except causing each conductive pattern 2
In the rectangular area of above-mentioned side size range, for conductive pattern 2 in arrangement, it is in the surface institute of dielectric substrate 1 in the present embodiment
The shape and size of the plane domain of occupancy also can as needed or the concrete shape of conductive pattern 2 and be designed.
Surface electromagnetic wave input block and the surface electromagnetic wave output of the lateral edges of dielectric substrate 1 are arranged in the present embodiment
Unit can be the super surface of gradient or microstrip line that can be coupled to surface electromagnetic wave in design, and except surpassing table for gradient
Face and microstrip line, other modes for realizing Coupling of surface electromagnetic wave as corresponding to the coupled modes such as direct-coupling are also can be with
's.
Wherein, specifically, as a kind of knot that plane electromagnetic wave is coupled into surface electromagnetic wave commonly used in microwave section
Structure, a kind of example arrangement of the microstrip line of the present embodiment as shown in Figure 2, its can directly using above-mentioned dielectric substrate 1 as
Matrix, sheet metal 10 is provided with the top of dielectric substrate 1, corresponding to the position of sheet metal 10, in the bottom of dielectric substrate 1 covered with gold
Category 9.
Microstrip line construction electromagnetic wave shown in Fig. 2 of the present embodiment resonance between upper and lower metal covering, due to not being closing
Metal wave guide cavity, the process of reflection of electromagnetic wave occurs larger radiation, the bigger ripple of wave vector easily occurs so that
Microstrip line can have higher efficiency relative to direct-coupled mode.The microstrip line construction of the present embodiment, it is directly made
In the measurement that can be easy on dielectric substrate 1 in experiment, namely when electromagnetic wave reaches the microstrip line construction of receiving terminal, that is, have
Signal is coupled to the interface being connected with microstrip line, so as to the output beneficial to signal.
The super surface coupled modes of gradient of the present embodiment, i.e., make on dielectric sheet with periodic sub-wavelength structure,
Some small units, when plane electromagnetic wave incides this sub-wavelength structure, electromagnetism are included in each big sub-wavelength structure
Continuous 2pi change, when the size of sub-wavelength structure is less than electromagnetic wavelength, incident plane electromagnetic wave occur for wave phase
The surface electromagnetic wave of specific wave vector will be converted into greater efficiency.A kind of specifically, example on the super surface of the gradient of the present embodiment
Property structure can be as shown in Figure 3, and above-mentioned dielectric sheet can still use dielectric substrate 1, the junior unit in each sub-wavelength structure 11
It is made up of " H " type structure of sub-wavelength dimensions, the size gradually minispread in certain direction of each junior unit.
The direct coupling system of the present embodiment is that antenna is attached in dielectric substrate 1, so as to which electric current is in antenna and dielectric
Scattering can occur between substrate 1 during direct resonance to external radiation, and form surface electromagnetic wave, which is also a kind of ratio in microwave section
The coupled modes of more typical surface electromagnetic wave, but its coupling efficiency is low compared to microstrip line.
The mechanism propagated below in conjunction with above-mentioned example structure surface electromagnetic wave auto-collimation illustrates.
Different from the electromagnetic wave of free-space propagation, surface electromagnetic wave is to be present in two kinds of Jie with differing dielectric constant
The electromagnetic wave decayed between matter and along vertical interface direction index, compared with the electromagnetic wave of free-space propagation, identical frequency following table
Face electromagnetic wave phase speed is low and wave vector is big.When above-mentioned medium at least one medium is anisotropy, existing surface electromagnetism
Ripple is also known as Dyakonov ripples, and the now propagation of surface electromagnetic wave is no longer along 360 degree, be the substitute is along some specific angles
Degree is propagated.
It is well known that (Q factor compares the surface electromagnetic wave pattern that can be propagated rather than dissipate existing for a kind of body structure surface
It is high) resonance of structure is depended on, in other words, stable mode present on structure both corresponds to the resonance mode of structure.When one
When kind dielectric surface covers anisotropic periodically sub-wavelength conductive pattern, these conductive patterns have at different frequencies
There is different resonance modes.Under the angle of physics, each frequency, (i.e. foregoing medium covers each the structure with its surface
The entirety of the periodicity sub-wavelength conductive pattern of anisotropy) an equivalent dielectric constant is all corresponded to, and due to conductive pattern
Anisotropy, the structure can be equivalent to the uniform of dielectric constant anisotropy in the case where conductive pattern size is sub-wavelength
Medium.
The adjustment of geometrical parameters and dielectric constant, resonance mode can be had an impact, because the sub-wavelength structure has
Have periodically, therefore the resonance mode of each conductive pattern unit can be interacted by surrounding cells, eventually form
What we obtained depends on periodic stable mode.And pattern information (such as wave vector, direction of propagation etc.) corresponding to each frequency
It can be obtained by isofrequency map, wherein the direction of propagation is perpendicular to the tangential direction for waiting frequency line.
As described above, we can be by the geometric parameter of adjustment structure come the final propagation side for adjusting surface electromagnetic wave
To I-shaped in the present invention is the resonance characteristics based on its structure and individual unit, different under the conditions of periodicity is existing
The interphase interaction of pattern, the pattern (it is straight line to wait frequency line) for the surface electromagnetic wave propagated along single direction is formed, the pattern is very
Good is strapped in very narrow region, realizes that the collimation of surface electromagnetic wave is propagated.
And on for the judgement to touch location, as it was previously stated, the pattern depends on the periodicity of conductive pattern, change sentence
Talk about, under working frequency (i.e. specific frequency), surface electromagnetic wave is considered as the Dyakonov ripples propagated along single direction, has
Anisotropy effective dielectric constant.When the dielectric object with differing dielectric constant is appeared on the path of auto-collimation propagation,
The periodicity that the pattern relies on is destroyed, and original homogeneous anisotropy can not be regarded as again by placing around dielectric object is situated between
Matter, in other words, script are no longer present due to the around pattern auto-collimation pattern to be formed that interacts, and directly performance is for it
The decay of propagation path upper surface electromagnetic wave signal corresponding to dielectric object, and due to away from dielectric object propagation path at still
So have periodically, therefore, touch location can be realized via the coordinate corresponding to auto-collimation propagation path by this method
Judge.
Calculate below in conjunction with instantiation, and using Comsol Multiphysics and experiment model test to illustrate
The performance of the touch-screen of the said structure of the present embodiment.
First, as a kind of exemplary construction, the structure of conductive pattern 2 and dielectric substrate 1 as shown in Figures 4 and 5, conductor
Pattern 2 is I-shaped structure, and the length of side in the direction region residing for it is respectively Dx and Dy, and conductive pattern 2 structure of itself
Parameter includes a, b, c, w1、w2、w3With thickness t, in addition, the structural parameters of dielectric substrate 1 include its thickness h and relative dielectric
Constant.
As first example, Dx=Dy=5mm, a=2mm, b=c=3.8mm, w are chosen in this example1=w2=w3=
0.4mm, h=1mm, t=35 μm, the relative dielectric constant of dielectric substrate 1 is 16, and has millesimal tangential loss, is led
Body pattern 2 is made of metallic copper.Now, for the conductive pattern 2 of structure as shown in Figure 4, Comsol is passed through
As shown in fig. 6, wherein transverse and longitudinal coordinate is respectively the wave vector in x and y directions, unit is the isofrequency map that Multiphysics is calculated
Pi/Dx, it is GHz that what is marked in figure, which waits the unit of frequency corresponding to frequency line,.As seen from Figure 6, it is respectively 6.2GHz in frequency
During with 11.11GHz, line of the frequency line for two orthogonal direction opposing straights is waited, it shows the surface in 6.2GHz and 11.11GHz
Electromagnetic wave has that good autocollimatic is straightforward, namely surface electromagnetic wave one way propagation in the x-direction under 6.2GHz this specific frequency,
And rapid decay in the y-direction, similarly, under 11.11GHz this specific frequency, surface electromagnetic wave one way propagation in the y-direction, and
Rapid decay in the x-direction.
To verify above-mentioned calculating and analysis, according to above-mentioned conductive pattern 2 and dielectric base in this example as shown in Figure 7
The structural parameters at bottom 1, the touch-screen sample of square is produced by the way of PCB printings, in the sample dielectric substrate 1
Conductive pattern 2 be 196 altogether, (x is to input for the surface electromagnetic wave input block for inputting and receiving for Coupling of surface electromagnetic wave
Unit, y are to input block) and surface electromagnetic wave output unit (x is to output unit, x to output unit) use microstrip line.
Using made touch-screen sample, use net divide instrument (Agilent 8722ES) in the x-direction incoming frequency for
6.34GHz, and electric field component Ex amplitude distribution when incoming frequency is 11.12GHz in the y-direction such as (a) in Fig. 8 and
(b) shown in, it is straightforward to be respectively provided with good bound and autocollimatic for the electric field of both direction as seen from Figure 8, this and above-mentioned meter
Point counting analysis meets.
And it is response of the surface electromagnetic wave of the obtained auto-collimation propagation of checking to its propagation path surrounding environment, this reality
Dielectric cylinder 8 as shown in Figure 9 is selected in example, the dielectric constant of the dielectric cylinder 8 is different from ring around dielectric substrate
Border (air), and the radius of dielectric cylinder 8 is 5mm, a height of 5mm, meanwhile, dielectric cylinder 8 has relative dielectric constant difference altogether
For five kinds of 16.5,20.5,36.5,45,69.By being sequentially placed in table as shown in Figures 10 and 11 respectively of dielectric cylinder 8
On the electromagnetic wave propagation path of face, and it is placed on the both sides of the propagation path of surface electromagnetic wave.
After dielectric cylinder 8 is placed, divide the output input signal ratio (S21) that instrument measures x and y directions respectively as schemed by net
Shown in (a) and (b) in 12, wherein, the line with square mark represents the propagation that dielectric cylinder 8 is positioned over surface electromagnetic wave
On path, the line with circular indicia represents the both sides that dielectric cylinder 8 is positioned over propagation path, and abscissa is the phase of dielectric cylinder
To dielectric constant, and relative dielectric constant is that dielectric cylinder is not placed in 1 expression.(a) can be seen that when dielectric cylinder 8 in Figure 12
When appearing on propagation path, surface electromagnetic wave is by the scattering of part and absorbs, and result in the electricity received at output unit
The obvious reduction of magnetic wave intensity.(b) is it can be seen that be located at both sides when dielectric cylinder 8, without in surface electromagnetic wave in Figure 12
Propagation path on when, the loss in surface electromagnetic wave communication process is very low, and the surface electromagnetic wave that this and auto-collimation are propagated is non-
Diffraction propagation is relevant, and the surface electromagnetic wave that the auto-collimation that is formed of the touch-screen sample of this example of surface is propagated can be avoided effectively
The interference of its propagation path surrounding environment.
It should be noted that the S21 values measured in sample experiments are relatively low and have the reason for floating mainly to have in this example
Two, be that the coupling efficiency of microstrip line is not high first, is scattered substantially especially in coupling process, result in the damage of electromagnetic wave energy
Lose；Secondly because the output unit as output only acts upon the region of fritter fixation, rather than propagated in surface electromagnetic wave
Effective wavelength range in integrated, therefore the measurement of diverse location just has different results, and energy value is relatively low.
Even if but have the influence of factor as above, by the dielectric cylinder 8 shown in Figure 12 on propagation path with
And the result in the side position of propagation path two, it still is able to find out that output signal is obvious when there is dielectric cylinder 8 on propagation path
Reduce, therefore can be very good to prove that the touch-screen of this exemplary construction can effectively detect propagation by above-mentioned experiment
The change of environment on path, while exclude the interference around propagation path.
In addition, the error between frequency in this example obtained by sample experiments and energy band analysis is mainly derived from workmanship and missed
Deviation on the relative dielectric constant of difference and dielectric substrate 1.
As second example, the parameter a in first example is only changed to 1.4mm, other parameters by 2mm in this example
Keep constant.Now, the isofrequency map being calculated by Comsol Multiphysics is as shown in figure 13, by can be with Figure 13
The frequency for finding out the now surface electromagnetic wave that auto-collimation is propagated is 6.7GHz and 11.2GHz.And by using with first example
Measured by middle identical experimental method now, x and y directions are corresponding when collimating frequency and being respectively 6.95GHz and 11.28GHz
Electric field component Ex amplitude distribution is as shown in Figure 14.In addition, different dielectric cylinder 8 on propagation path and is being propagated respectively
Output input signal ratio when path both sides are placed is as shown in Figure 15.Respectively scheme more than, the touch-screen in this example can
Realize that the auto-collimation of specific frequency lower surface electromagnetic wave is propagated, meanwhile, it can effectively detect environment on propagation path
Change, while excludes the interference around propagation path, and can also adjust autocollimatic by adjusting the parameter of conductive pattern 2 and direct transfer
The frequency for the surface electromagnetic wave broadcast.
As the 3rd example, the relative dielectric constant of dielectric substrate 1 is only changed into 3, Qi Tacan by 16 in this example
Number is identical with first example, the isofrequency map being now calculated by Comsol Multiphysics as shown in Figure 16,
By it can be seen that the auto-collimation frequency in corresponding x and y directions is respectively 12.83GHz and 23.82GHz, first example of contrast can
The autocollimatic frequency of surface electromagnetic wave can be changed by changing the relative dielectric constant of dielectric substrate 1 by knowing the touch-screen of this example
Rate.
As the 4th example, the thickness h of dielectric substrate 1 is changed into 1.2mm, the phase of dielectric substrate 1 from 1mm in this example
3 are remained to dielectric constant, other parameters are identical with first example, now calculated by Comsol Multiphysics
Obtained isofrequency map as shown in Figure 17, as seen from Figure 17 the auto-collimation frequency of surface electromagnetic wave become for 12.65GHz and
23.5GHz, it shows that the touch-screen of this example can change auto-collimation frequency by changing the thickness of dielectric substrate 1.
As the 5th example, by structural parameters Dx, Dy, a, b, c, w in the 3rd example in this example1、w2、w3
Reduce 1/5, i.e. Dx=Dy=1mm, a=0.4mm, b=c=0.76mm, w1=w2=w3=0.08mm, h=0.2mm, and keep
The relative dielectric constant of dielectric substrate 1 is 3, and the thickness h of conductive pattern 2 is 35 μm.Now pass through Comsol Multiphysics
The isofrequency map being calculated is as shown in figure 18, as seen from Figure 18 the auto-collimation frequency in x and y directions be changed into 63.35GHz and
120.5GHz, and now, x and y directions correspond to electric field component Ex's when collimating frequency and being respectively 63.35GHz and 120.5GHz
Amplitude distribution is as shown in Figure 19.And with the 3rd examples comparative, it is known that the touch-screen of this example can be by conductive pattern 2
The adjustment of geometric parameter and adjust auto-collimation frequency, meanwhile, with first examples comparative, it can be seen that the geometric parameters of conductive pattern 2
Several changes also results in the change of electric field constraint width, namely reduces with the reduction of geometric parameter, so as to which it also illustrates
The touch-screen of this example can adjust resolution ratio by the adjustment of geometric parameter.
To sum up, the touch-screen that structure described in the present embodiment is can be seen that by several examples of the present embodiment not only can be real
The auto-collimation of surface electromagnetic wave under existing specific frequency is propagated, and can also be realized pair by changing the structural parameters of touch-screen
The adjustment of its auto-collimation frequency (i.e. working frequency) and resolution ratio, it is adjustable so as to obtain a kind of applied widely and resolution ratio
Touch screen structure.And the concrete application of the touch-screen of the present embodiment structure will be illustrated in examples below two.
Embodiment two
The present embodiment is related to a kind of touch-screen system, and it includes the touching based on surface electromagnetic wave as described in embodiment one
Touch screen, in addition to the electromagnetic wave generation unit being connected with surface electromagnetic wave input block, and with surface electromagnetic wave output unit
The recognition unit of connection.Wherein, electromagnetic wave generation unit is used to generate the electromagnetic wave of specific frequency and is transmitted in surface electromagnetic wave
Input block, the intensity for the surface electromagnetic wave that recognition unit is then used to receive surface electromagnetic wave output unit detect,
Touch point is used as so that surface electromagnetic wave intensity to be reduced to the coordinate corresponding to surface electromagnetic wave output unit more than nominal threshold value
Coordinate.The electromagnetic wave generation unit of the present embodiment is used such as the microstrip line construction in embodiment one with recognition unit.
The touch-screen system of the present embodiment by using the touch-screen in embodiment one, by determine dielectric substrate 1 and
So as to determine the frequency of the surface electromagnetic wave of the auto-collimation propagation corresponding to it, it is the geometric parameter of conductive pattern 2
The specific frequency for the electromagnetic wave that the electromagnetic wave generation unit should generate, namely the working frequency of the touch-screen system.
The electromagnetic wave of specific frequency namely working frequency is generated by electromagnetic wave generation unit, and via surface electromagnetic wave
The coupling of input block forms surface electromagnetic wave, and the auto-collimation of surface electromagnetic wave is propagated and surface electromagnetic wave output unit pair
The reception of surface electromagnetic wave and the identification of recognition unit.So that just can be because of the change of environment at touch point, and cause touch point
The reduction that surface electromagnetic wave on affiliated x directions and the propagation path in y directions receives, if recognition unit detects surface electromagnetism
Intensity of wave is reduced beyond nominal threshold value, the reduction that can judge surface electromagnetic wave and unprovoked error causes, and now passes through x directions
And the orthogonality of y directions propagation path, just it is able to confirm that out the detailed position coordinates of touch point.Certainly, if only needing a side
To position coordinates, now only pass through the judgement to the output signal on x directions or y directions.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (12)
- A kind of 1. touch-screen based on surface electromagnetic wave, it is characterised in that including：Dielectric substrate；Multiple surface electromagnetic wave input blocks, located at the dielectric substrate side, to form to the electromagnetic wave of outside generation in institute The coupling of dielectric substrate is stated, and forms surface electromagnetic wave；Periodic conductor pattern, located at the dielectric substrate, the characteristic size of each conductive pattern is sub-wavelength chi It is very little, and the conductive pattern is configured to adapt to the structure of the dielectric substrate, and make the surface electromagnetic wave input block The surface electromagnetic wave of the specific frequency of input is formed to be propagated along the auto-collimation of the dielectric substrate；Multiple surface electromagnetic wave output units, relative to the surface electromagnetic wave input block, the phase located at the dielectric substrate To opposite side and the one-to-one corresponding that is formed between the surface electromagnetic wave input block, surface electromagnetic wave output it is single Member forms being coupled to receive and carrying out the surface electromagnetic wave of the reception to outside to the surface electromagnetic wave of auto-collimation propagation Conductance goes out.
- 2. the touch-screen according to claim 1 based on surface electromagnetic wave, it is characterised in that：Also include covering in being given an account of The protective layer having on the conductive pattern side of electric substrate；The protective layer is made up of transparent or nontransparent material, and The thickness of the protective layer is 0~1cm.
- 3. the touch-screen according to claim 1 based on surface electromagnetic wave, it is characterised in that：The dielectric substrate it is relative Dielectric constant is 1~100.
- 4. the touch-screen according to claim 3 based on surface electromagnetic wave, it is characterised in that：The dielectric substrate is by transparent Or nontransparent material is made.
- 5. the touch-screen according to claim 1 based on surface electromagnetic wave, it is characterised in that：The material of the conductive pattern Including metal, graphene, Polyglycolic acid fibre and conducting polymer.
- 6. the touch-screen according to claim 1 based on surface electromagnetic wave, it is characterised in that：The figure of the conductive pattern Including concave polygon, convex polygon, circle, ellipse and fractal graph.
- 7. the touch-screen according to claim 6 based on surface electromagnetic wave, it is characterised in that：The fractal graph it is basic Figure includes square, diamond, cross, H-shaped and I-shaped.
- 8. the touch-screen according to claim 1 based on surface electromagnetic wave, it is characterised in that：Each conductive pattern quilt Be arranged in a rectangular area for being formed at the dielectric substrate, and the length of side of each rectangular area for 50nm~ 10cm, each rectangular area mutually separate.
- 9. the touch-screen according to claim 1 based on surface electromagnetic wave, it is characterised in that：The surface electromagnetic wave input Unit and the surface electromagnetic wave output unit include the super surface of gradient, the microstrip line that can be coupled to surface electromagnetic wave.
- 10. the touch-screen according to any one of claim 1 to 9 based on surface electromagnetic wave, it is characterised in that：In described The opposite sides in each direction in the mutually orthogonal both direction of dielectric substrate is respectively arranged with the surface of corresponding arrangement Electromagnetic wave input block and the surface electromagnetic wave output unit.
- A kind of 11. touch-screen system, it is characterised in that including：The touch-screen based on surface electromagnetic wave as any one of claim 1 to 10；Electromagnetic wave generation unit, it is connected with the surface electromagnetic wave input block, to generate the electromagnetic wave of specific frequency and transmission In the surface electromagnetic wave input block；Recognition unit, it is connected with the surface electromagnetic wave output unit, the recognition unit is used for defeated to the surface electromagnetic wave The intensity for going out the surface electromagnetic wave that unit is received is detected, and surface electromagnetic wave intensity is reduced into institute more than nominal threshold value State coordinate of the coordinate corresponding to surface electromagnetic wave output unit as touch point.
- 12. touch-screen system according to claim 11, it is characterised in that：The coordinate of the touch point is along the dielectric One-dimensional coordinate on one direction of substrate, or the coordinate of the touch point is along two orthogonal directions of the dielectric substrate Two-dimensional coordinate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710786274.1A CN107885403A (en) | 2017-09-04 | 2017-09-04 | Touch-screen and touch-screen system based on surface electromagnetic wave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710786274.1A CN107885403A (en) | 2017-09-04 | 2017-09-04 | Touch-screen and touch-screen system based on surface electromagnetic wave |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107885403A true CN107885403A (en) | 2018-04-06 |
Family
ID=61780606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710786274.1A Pending CN107885403A (en) | 2017-09-04 | 2017-09-04 | Touch-screen and touch-screen system based on surface electromagnetic wave |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107885403A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111857450A (en) * | 2019-04-26 | 2020-10-30 | 深圳市环波科技有限责任公司 | Multi-point positioning method of touch screen based on surface electromagnetic waves |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050175304A1 (en) * | 2002-03-06 | 2005-08-11 | Marco Romagnoli | Method for guiding an electromagnetic radiation, in particular in an integrated optical device |
| US20070108382A1 (en) * | 2005-09-05 | 2007-05-17 | Canon Kabushiki Kaisha | Specimen testing element, specimen information obtaining method and specimen testing apparatus |
| US20120062514A1 (en) * | 2010-09-15 | 2012-03-15 | Uc-Logic Technology Corp. | Electromagnetic-Type Touch Input Device, and Touch Display Device Incorporating the Same |
| CN102693034A (en) * | 2010-12-23 | 2012-09-26 | 韩国电子通信研究院 | Touch input device and electromagnetic-wave transceiver using the same device |
| US20130014981A1 (en) * | 2011-07-12 | 2013-01-17 | Hitachi, Ltd. | Electromagnetic wave propagation apparatus and electromagnetic wave interface |
| TW201305893A (en) * | 2011-07-26 | 2013-02-01 | Byd Co Ltd | Induction unit, touch screen detecting device, and touch sensitive device |
| CN103376966A (en) * | 2012-04-19 | 2013-10-30 | 乐金显示有限公司 | Electrostatic capacity type touch screen panel for display device and method of manufacturing the same |
| CN103576237A (en) * | 2013-11-18 | 2014-02-12 | 中国科学院大学 | Auto-collimation zero phase shift transmission method based on photonic crystals |
| US20140375599A1 (en) * | 2013-06-19 | 2014-12-25 | Waltop International Corp. | Touch input system and method |
| KR20150031061A (en) * | 2013-09-13 | 2015-03-23 | 엘지이노텍 주식회사 | Touch panel |
| CN104571773A (en) * | 2013-10-18 | 2015-04-29 | 刘中华 | Two-dimensional sensor compatible with touch and electromagnetic handwriting detection |
| US20160154524A1 (en) * | 2013-08-09 | 2016-06-02 | Dongwoo Fine-Chem Co., Ltd. | Touch-sensing electrode and touch screen panel comprising same |
| CN105720379A (en) * | 2016-02-21 | 2016-06-29 | 上海大学 | Surface plasmon coupler based electromagnetic energy collecting apparatus |
| US20160188092A1 (en) * | 2014-12-22 | 2016-06-30 | Paneratech, Inc. | Touchscreen antenna system and design method thereof |
| CN107046179A (en) * | 2016-09-18 | 2017-08-15 | 北京邮电大学 | A kind of super surface of adjustable dielectric |
| CN207586894U (en) * | 2017-09-04 | 2018-07-06 | 温维佳 | Touch screen and touch-screen system based on surface electromagnetic wave |
-
2017
- 2017-09-04 CN CN201710786274.1A patent/CN107885403A/en active Pending
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050175304A1 (en) * | 2002-03-06 | 2005-08-11 | Marco Romagnoli | Method for guiding an electromagnetic radiation, in particular in an integrated optical device |
| US20070108382A1 (en) * | 2005-09-05 | 2007-05-17 | Canon Kabushiki Kaisha | Specimen testing element, specimen information obtaining method and specimen testing apparatus |
| US20120062514A1 (en) * | 2010-09-15 | 2012-03-15 | Uc-Logic Technology Corp. | Electromagnetic-Type Touch Input Device, and Touch Display Device Incorporating the Same |
| CN102693034A (en) * | 2010-12-23 | 2012-09-26 | 韩国电子通信研究院 | Touch input device and electromagnetic-wave transceiver using the same device |
| US20130014981A1 (en) * | 2011-07-12 | 2013-01-17 | Hitachi, Ltd. | Electromagnetic wave propagation apparatus and electromagnetic wave interface |
| TW201305893A (en) * | 2011-07-26 | 2013-02-01 | Byd Co Ltd | Induction unit, touch screen detecting device, and touch sensitive device |
| CN103376966A (en) * | 2012-04-19 | 2013-10-30 | 乐金显示有限公司 | Electrostatic capacity type touch screen panel for display device and method of manufacturing the same |
| US20140375599A1 (en) * | 2013-06-19 | 2014-12-25 | Waltop International Corp. | Touch input system and method |
| US20160154524A1 (en) * | 2013-08-09 | 2016-06-02 | Dongwoo Fine-Chem Co., Ltd. | Touch-sensing electrode and touch screen panel comprising same |
| KR20150031061A (en) * | 2013-09-13 | 2015-03-23 | 엘지이노텍 주식회사 | Touch panel |
| CN104571773A (en) * | 2013-10-18 | 2015-04-29 | 刘中华 | Two-dimensional sensor compatible with touch and electromagnetic handwriting detection |
| CN103576237A (en) * | 2013-11-18 | 2014-02-12 | 中国科学院大学 | Auto-collimation zero phase shift transmission method based on photonic crystals |
| US20160188092A1 (en) * | 2014-12-22 | 2016-06-30 | Paneratech, Inc. | Touchscreen antenna system and design method thereof |
| CN105720379A (en) * | 2016-02-21 | 2016-06-29 | 上海大学 | Surface plasmon coupler based electromagnetic energy collecting apparatus |
| CN107046179A (en) * | 2016-09-18 | 2017-08-15 | 北京邮电大学 | A kind of super surface of adjustable dielectric |
| CN207586894U (en) * | 2017-09-04 | 2018-07-06 | 温维佳 | Touch screen and touch-screen system based on surface electromagnetic wave |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111857450A (en) * | 2019-04-26 | 2020-10-30 | 深圳市环波科技有限责任公司 | Multi-point positioning method of touch screen based on surface electromagnetic waves |
| CN111857450B (en) * | 2019-04-26 | 2023-08-04 | 深圳市环波科技有限责任公司 | Multi-point positioning method of touch screen based on surface electromagnetic waves |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Ran et al. | Experimental study on several left-handed matamaterials | |
| JP2007166115A (en) | Antenna device | |
| US9362601B2 (en) | Apparatus and method for broadband electromagnetic mode suppression in microwave and millimeterwave packages | |
| Quarfoth et al. | Nonscattering waveguides based on tensor impedance surfaces | |
| WO2009078596A1 (en) | Metamaterial structure having negative permittivity, negative permeability, and negative refractivity | |
| EP2693860B1 (en) | Wave-absorbing metamaterial | |
| CN207586894U (en) | Touch screen and touch-screen system based on surface electromagnetic wave | |
| CN107885404A (en) | Method for detecting position and position sensor based on surface electromagnetic wave | |
| CN110061335A (en) | The preparation method of zero index waveguide structure and zero refraction materials | |
| Lee et al. | Method for extracting the effective tensor surface impedance function from nonuniform, anisotropic, conductive patterns | |
| Lee et al. | A method for extending the bandwidth of metamaterial absorber | |
| Monnai et al. | Focus-scanning leaky-wave antenna with electronically pattern-tunable scatterers | |
| Falade et al. | Design and characterisation of a screen-printed millimetre-wave flexible metasurface using copper ink for communication applications | |
| Tong et al. | Anisotropic index-near-zero metamaterials for enhanced directional acoustic emission | |
| CN107885403A (en) | Touch-screen and touch-screen system based on surface electromagnetic wave | |
| Cumby et al. | Robust pressure-actuated liquid metal devices showing reconfigurable electromagnetic effects at GHz frequencies | |
| CN108767492B (en) | Adjustable terahertz broadband wave absorber | |
| Liu et al. | Babinet principle for anisotropic metasurface with different substrates under obliquely incident plane wave | |
| Fan et al. | 3D flexible frequency selective surface with stable electromagnetic transmission properties | |
| JP2021057722A (en) | Radio wave transmission plate and radio wave transmission system | |
| Kashiwagi et al. | Flexible and stackable terahertz metamaterials via silver-nanoparticle inkjet printing | |
| US20130049887A1 (en) | Electromagnetically transparent metamaterial | |
| CN111857450B (en) | Multi-point positioning method of touch screen based on surface electromagnetic waves | |
| Hesarian | Analyzing the effect of the structural parameters of the fabric substrate layer on the textile FSS shielding properties | |
| Singh et al. | Performance Analysis of Superstrate Loaded Cylindrically Conformal Microstrip Antenna on the Varying Curvature for Wimax Applications. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180529 Address after: 518000 B12 building, 18 Naka Minobu innovation industrial town, Buji street, Longgang, Shenzhen, Guangdong. Applicant after: Wen Weijia Applicant after: Hu Chuandeng Applicant after: Wu Xiaoxiao Address before: 518000 room 1206, 18B building, Zhongxin innovation industry city, 11, Jihua two road, Longgang District, Shenzhen, Guangdong. Applicant before: Shenzhen still Hi Tech Co., Ltd. |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190527 Address after: 518000 Shenzhen Nanshan District, Guangdong Province, 118B-H, Shenzhen Industry, University and Research Building, Hong Kong University of Science and Technology, No. 9 Yuexing Road, Yuehai Street, Shenzhen Applicant after: Shenzhen Huanbo Technology Co., Ltd. Address before: 518000 B12 building, 18 Naka Minobu innovation industrial town, Buji street, Longgang, Shenzhen, Guangdong. Applicant before: Wen Weijia Applicant before: Hu Chuandeng Applicant before: Wu Xiaoxiao |
|
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 518000 Guangdong Longhua District Minzhi Street Leshe Xinghe WORLD Phase II E Block 306B Applicant after: Shenzhen Huanbo Technology Co., Ltd. Address before: 518000 Shenzhen Nanshan District, Guangdong Province, 118B-H, Shenzhen Industry, University and Research Building, Hong Kong University of Science and Technology, No. 9 Yuexing Road, Yuehai Street, Shenzhen Applicant before: Shenzhen Huanbo Technology Co., Ltd. |
|
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 518000 Guangdong Province Longhua District Minzhi Street Minle Community Xinghe WORLD Phase II E Block 306B Applicant after: Shenzhen Huanbo Technology Co., Ltd. Address before: 518000 Guangdong Longhua District Minzhi Street Leshe Xinghe WORLD Phase II E Block 306B Applicant before: Shenzhen Huanbo Technology Co., Ltd. |
|
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 518000 unit I, block B, floor 7, building 9, Baoneng Science Park, Qinghu village, Qinghu community, Longhua street, Longhua District, Shenzhen City, Guangdong Province Applicant after: Shenzhen Huanbo Technology Co., Ltd. Address before: 518000 Guangdong Province Longhua District Minzhi Street Minle Community Xinghe WORLD Phase II E Block 306B Applicant before: Shenzhen Huanbo Technology Co., Ltd. |
|
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 518000 unit I, block B, 6 / F, Baoneng Science Park, Qinghu village, Qinghu community, Longhua street, Longhua District, Shenzhen, Guangdong Applicant after: SHENZHEN HUANBO TECHNOLOGY Co.,Ltd. Address before: 518000 unit I, block B, 7 / F, building 9, Baoneng Science Park, Qinghu village, Qinghu community, Longhua street, Longhua District, Shenzhen City, Guangdong Province Applicant before: SHENZHEN HUANBO TECHNOLOGY Co.,Ltd. |